racer vs brute

racer and brute both are nouns.

Word	Noun	Adjective	Verb	Adverb
racer	Yes	No	No	No
brute	Yes	Yes	No	No

As nouns, brute is a hypernym of racer; that is, brute is a word with a broader meaning than racer:

Other hypernyms of racer include animal, animate being, beast, creature, fauna.

racer (noun)	brute (noun)
an animal that races	a living organism characterized by voluntary movement
slender fast-moving North American snakes	a cruelly rapacious person
a fast car that competes in races
someone who drives racing cars at high speeds

racer (adjective)	brute (adjective)
	resembling a beast; showing lack of human sensibility